Synonyms and related words :
Walter Mitty, absence of mind, absentmindedness, absorption, abstractedness, abstraction, airy hope, airy nothing, autism, bad dream, be absent, bemusement, brown study, bubble, castle-building, chimera, daydream, daydreamer, daydreaming, deception, deluded belief, delusion, depth of thought, dereism, divagate, dream, dream of, dream vision, dreaming, dreamland, dreamworld, engrossment, false belief, fantasy, fantasying, fit of abstraction, freak out, go woolgathering, golden dream, ignis fatuus, illusion, incubus, misbelief, misconception, moon, mooning, moonraking, muse, musefulness, musing, muted ecstasy, nightmare, pipe-dreaming, preoccupation, quixotic ideal, reverie, self-deceit, self-deception, self-delusion, stargaze, stargazing, stray, study, trance, trick, trip, unreal hope, utopia, vapor, vision, wander, woolgathering, wrong impression